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EN
M1.2.CUT80HFI.NLFREN 09102018
6 Troubleshooting
The abnormity indicator on the front panel would illuminate in case of any failures inside the cutting machine.
Malfunction phenomena
Cause and solution
Turn on the machine, the power indicator illuminates,
the fan does not work, and the control button does not
function.
Overvoltage protection occurs Shut down the machine,
and restart it after a few minutes.
Turn on the machine, the power indicator illuminates
and the fan works. When pressing the control button of
the cutting torch, the solenoid valve inside the machine
functions, but there is no HF discharge rustling and the
red LED inside the machine is on.
1. The MOSFET or IGBT on the top PCB is damaged.
(The drive module is damaged.)
2. The step-up transformer on the bottom TCB is
damaged.
3. The control module is damaged.
Turn on the machine, the power indicator illuminates
and the fan works. When pressing the control button of
the cutting torch, the solenoid valve inside the machine
functions, but there is no HF discharge rustling and the
red LED inside the machine is off.
The arc ignition part fails:
1. There is electrode sticking inside the discharge nozzle
or the interelectrode distance of the discharge nozzle
is too long.
2. There is short circuit or bad contact in the primary coil
of the arc ignition transformer.
3. There is leakage of the HF capacitor 102/10 kV.
4. The relay is damaged.
Arc can not be ignited.
1. The input voltage is too low.
2. The air pressure is overly high or overly low.
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